and these >> go seahawks! >> reporter: -- extra security becomes top priority for the san francisco police chief. he wouldn't talk hard numbers but did say -- >> i'll tell you what. we had about 50% more officers than in a regular nonrivalry game out here and probably twice as many officers in opposing team apparel. >> reporter: that means officers disguised in seahawks jerseys monitoring the crowd inside and outside candlestick at all times. the seahawks do it at their home games and for a big game like this now we do it, too. >> if you get out anybody else, you're going to find yourself in jail and these tickets are expensive. you want to find yourself inside the stadium and not in our station. >> reporter: for fans the extra security was paying off. ronnie wittenberg has broken up a pregame fight or two in his day but not today. >> let's just chill. it's a game. let's have fun and enjoy ourselves. >> reporter: the cortez sisters agree. >> i've heard the area could be not so safe or whatever, but i fool tota